Home / 7,999.17-11,035.63-5,311.70

Finding the Fourth Proportional to 7,999.17, 11,035.63 and 5,311.70

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Solution

The fourth proportional to 7,999.17, 11,035.63 and 5,311.70 is: 7,328.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.17 : 11,035.63 = 5,311.70 : x
  2. Step 2: Convert to fraction form
    7,999.17/11,035.63 = 5,311.70/x
  3. Step 3: Cross multiply
    7,999.17x = 11,035.63 × 5,311.70
  4. Step 4: Simplify right side
    7,999.17x = 58,617,955.87
  5. Step 5: Solve for x
    x = 58,617,955.87/7,999.17
  6. Step 6: Final answer
    x = 7,328.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.